Defensive publication



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED JANUARY 13, 1970 T870,013 SYNTHETIC PIGMENTS AND THEIR USE IN PLASTIC MATERIALS Gordon C. Newland, Kingsport, Tenn., and John W. Tamblyn, Jonas Ridge, N.C. (both Tennessee Eastman C0., P.0. Box 511, Kingsport, Tenn. 37662) Filed Oct. 31, 1968, Ser. No. 772,379 Int. Cl. C08b 21/08, 21/14; C08g 39/10 U.S. Cl. 260-16 No Drawing. 9 Pages Specification Synthetic pigments having good thermal and UV stability are prepared by blending a triphenodioxazine compound or a 4,4-bis(benzoxazol-Z-yl) stilbene compound With a polyester such as poly(1,4-cyclohexylene dimethylene terephthalate) during the polymerization thereof, and thereafter cornminuting the pigmented polymer to pigment proportions by grinding or other well known cormninuting procedures, 

